# Copyright 1999-2019 Gentoo Authors
# Distributed under the terms of the GNU General Public License v2

EAPI=7
PYTHON_COMPAT=(python2_7)

inherit linux-info python-single-r1 toolchain-funcs

DESCRIPTION="User-space front-end for Ftrace"
HOMEPAGE="https://git.kernel.org/cgit/linux/kernel/git/rostedt/trace-cmd.git"

if [[ ${PV} == *9999 ]] ; then
	EGIT_REPO_URI="https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/${PN}.git"
	inherit git-r3
else
	SRC_URI="https://git.kernel.org/pub/scm/linux/kernel/git/rostedt/${PN}.git/snapshot/${PN}-v${PV}.tar.gz"
	KEYWORDS="~amd64 ~x86"
	S="${WORKDIR}/${PN}-v${PV}"
fi

LICENSE="GPL-2+ LGPL-2.1+"
SLOT="0"
IUSE="+audit doc python udis86"
REQUIRED_USE="python? ( ${PYTHON_REQUIRED_USE} )"

RDEPEND="audit? ( sys-process/audit )
	python? ( ${PYTHON_DEPS} )
	udis86? ( dev-libs/udis86 )"
DEPEND="${RDEPEND}
	sys-kernel/linux-headers
	python? (
		virtual/pkgconfig
		dev-lang/swig
	)

	doc? ( app-text/asciidoc )"

CONFIG_CHECK="
	~TRACING
	~FTRACE
	~BLK_DEV_IO_TRACE"

PATCHES=(
	"${FILESDIR}"/trace-cmd-2.7-makefile.patch
	"${FILESDIR}"/trace-cmd-2.7-soname.patch
)

pkg_setup() {
	linux-info_pkg_setup
	use python && python-single-r1_pkg_setup
}

src_configure() {
	EMAKE_FLAGS=(
		"prefix=/usr"
		"libdir=/usr/$(get_libdir)"
		"CC=$(tc-getCC)"
		"AR=$(tc-getAR)"
		$(usex audit '' '' '' 'NO_AUDIT=1')
		$(usex udis86 '' '' '' 'NO_UDIS86=1')
	)

	if use python; then
		EMAKE_FLAGS+=(
			"PYTHON_VERS=${EPYTHON//python/python-}"
			"python_dir=$(python_get_sitedir)/${PN}"
		)
	else
		EMAKE_FLAGS+=("NO_PYTHON=1")
	fi
}

src_compile() {
	emake "${EMAKE_FLAGS[@]}" all_cmd libs
	use doc && emake doc

}

src_install() {
	emake "${EMAKE_FLAGS[@]}" DESTDIR="${D}" V=1 install install_libs
	use doc && emake DESTDIR="${D}" install_doc

}